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Huawei H12-891_V1.0 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Advanced Routing and Switching Technologies	37%	- Advanced Switching Technologies 1. VXLAN and EVPN principles and application 2. Ethernet protection and reliability technologies 3. Multicast routing and deployment - Advanced Routing Protocols 1. OSPF advanced features and optimization 2. BGP route control, policy and deployment 3. IS-IS protocol principles and deployment - Network Quality and Optimization 1. QoS mechanism and deployment 2. Traffic engineering and MPLS technology
Topic 2: Network Automation Technologies and Practice	17%	- Automation Foundation 1. Network programming basis and protocols 2. YANG model and data modeling - Huawei Automation Solutions 1. API-based network operation and maintenance 2. Configuration automation and deployment 3. eSight and iMaster NCE tools
Topic 3: Bearer WAN Planning and Deployment	15%	- Bearer Network Architecture 1. Typical bearer network structure and requirements 2. CloudWAN solution and application scenarios - High-level Technology Deployment 1. Network slicing and service bearing 2. SRv6 principles and deployment
Topic 4: Campus Network Planning and Deployment	23%	- Campus Network Architecture Design 1. CloudCampus solution architecture and features 2. Typical campus network structure and design principles - Campus Network Service Deployment 1. Campus network management and operation 2. WLAN planning and deployment 3. User access management and security
Topic 5: WAN Interconnection Network Planning and Deployment	8%	- WAN Interconnection Technologies 1. SD-WAN architecture and Huawei solution 2. Traditional WAN connection technologies - WAN Service Optimization 1. WAN security and isolation design 2. WAN link reliability and load balancing

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Huawei HCIE-Datacom V1.0 Sample Questions (Q89-Q94):

NEW QUESTION # 89
What messages does an NMS (Network Management Station) running SNMPv1 send to the agent?

A. Get,Set ? GetBulk
B. Get Trap
C. Get,Set,Getnext ? GetBulk
D. Trap,Get ? Set
E. Get,Set ? Getnext

Answer: E

NEW QUESTION # 90
Telemetry data must be encoded in GPB binary format. This format reduces the number of bytes in telemetry messages and improves the transmission efficiency compared with messages encoded in JSON format.

A. FALSE
B. TRUE

Answer: A

Explanation:
Understanding Telemetry Encoding Formats
#What is Telemetry?
Telemetry is a real-time network monitoring methodthat provideshigh-frequency data collection.
Used inAI-driven networks for predictive analytics and automation.
#Common Telemetry Encoding Formats:
#GPB (Google Protocol Buffers)
Highly efficient binary formatthat reducesmessage size and CPU overhead.
Commonly used forhigh-speed, real-time analytics.
#JSON (JavaScript Object Notation)
Human-readable format, widely used inRESTful APIs.
Less efficientthan GPB in high-speed telemetry buteasier to debug.
#Why is the Answer FALSE?
#GPB is not mandatory; JSON can also be used in telemetry.
#Huawei supports both GPB and JSON telemetry encoding formats.
Real-World Application:
Cloud Networking:UsesGPB for fast data collectionandJSON for API-based telemetry visualization.
AI-Driven Networks:High-speedAI analyticsleverageGPB encodingfor efficiency.
#Reference:Huawei HCIE-Datacom Guide - Telemetry Encoding Formats and Data Collection

NEW QUESTION # 91
Which of the following inter-AS MPLS L3VPN solutions needs ASBRs to transmit VPNv4 routes?

A. Option B
B. Option D
C. Option A
D. Option C

Answer: A

Explanation:
Comprehensive and Detailed
Inter-AS MPLS L3VPN Option B requires ASBRs to exchange VPNv4 routes using eBGP with label information.
Analysis of Inter-AS VPN Solutions:
Option B uses eBGP to exchange labeled VPNv4 routes between ASBRs but does not require MPLS between ASBRs.
Option A does not exchange VPNv4 routes over ASBRs (uses IP routing instead).
Option C uses MP-BGP and requires full MPLS between ASBRs.
Since Option B requires ASBRs to exchange VPNv4 routes, the correct answer is B.
📖 Reference: Huawei HCIE Datacom - MPLS Inter-AS VPNs

NEW QUESTION # 92
The telemetry network model is broadly and narrowly defined. Which of the following modules are involved intelemetry in a narrow sense (device-side telemetry)?

A. Data subscription
B. Data push
C. Data generation
D. Data source

Answer: B,C,D

Explanation:
Comprehensive and Detailed In-Depth Explanation:
Telemetry in a narrow senserefers specifically to thedevice-side telemetryprocess, which includes the following key modules:
Data generation (A):The device collects and generates telemetry data, such as performance metrics or operational statistics.
Data push (B):The deviceactively pushes the collected datato the configured destination (such as a collector or management system) using a data streaming protocol.
Data source (C):The entity on the device that generates or provides themonitored data.
Data subscription (D)isnot part of the device-side telemetry; it is related to themanagement system side, where users subscribe to specific telemetry data streams.
Therefore, the correct answers areA, B, C.
Reference:
Huawei HCIE Datacom Official Certification Guide
Huawei Telemetry Configuration Guide

NEW QUESTION # 93
Which of the following statements is correct about the differences between NSR and NSF?

A. NSF does not require the collaboration of neighboring routers.
B. NSR requires the collaboration of neighboring routers.
C. NSF requires the collaboration of neighboring routers.
D. Both NSR and NSF require the collaboration of neighboring routers.

Answer: C

Explanation:
Comprehensive and Detailed In-Depth Explanation:
NSR (Non-Stop Routing)andNSF (Non-Stop Forwarding)are high-availability mechanisms used to maintain network stability during routing process failures:
NSR (Non-Stop Routing):
Operates within thelocal router only.
Keeps routing information synchronized between theactive and standby processes.
Does not require collaboration from neighboring routers.
NSF (Non-Stop Forwarding):
Requires collaboration from neighboring routersthat support graceful restart.
The router undergoing failover relies on its neighbors tomaintain forwarding tableswhile control plane recovery takes place.
Neighboring routers must supportGR (Graceful Restart)for NSF to function correctly.
Therefore, the correct answer isBbecauseNSF requires neighboring router collaboration, whileNSR does not.

NEW QUESTION # 94
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